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ESTIMATE OF INFLUENCE OF DISLOCATION POSITION ON ANOMALOUS SIGNAL INTENSITY IN UNDERGROUND ELECTRICAL SURVEY



Detection of small-amplitude tectonic dislocations is a pressing task in coal mining. The task can be solved using the geophysical methods, in particular, the underground electrical survey. The basic difficulty in this case is the inverse problem solution. The solution should yield unambiguous coordinates of anomalously conductive zones related with the small-amplitude tectonic dislocations. For the electrical survey approach (equatorial parallel dipole electrical sounding) applied in Kuzbass mines, the best way of solving inverse problems is the continuation method. The measurement profile data differ in anomalous zones having the same parameters but different locations. Apparently, an anomaly-induced disturbance is determined by two distances: current dipole–anomalous zone distance and measurement profile–anomalous zone distance. The relations between the anomalous signal intensities and these distances are obtained, and the initial data processing algorithm is proposed, which enables more accurate estimate of the size of an abnormality.



: 7
2018
УДК: 550.837.31
DOI: 10.25018/0236-1493-2018-7-0-83-88
Authors: Gaysin R. M., Tsarikov A. Yu.

Authors' Information:
Gaysin R.M., Candidate of Technical Sciences, Assistant Professor,
Tsarikov A.Yu., Graduate Student,
Mining Institute, National University of Science and Technology «MISiS»,
119049, Moscow, Russia, e-mail: ftkp@mail.ru.

Key words:
Electrical survey, modeling, anomalous zone, equatorial parallel dipole electrical sounding.

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